Wind chill advisory


A Wind Chill Advisory is issued by the National Weather Service of the United States when the wind chill is low enough that it poses a threat to human health and life if adequate protection is not taken against hypothermia and frostbite. The exact definition varies from state to state, and areas prone to colder temperatures will often require the wind chill to be lower before issuing an advisory.

Example

The following is an example of a Wind Chill Advisory issued by the National Weather Service office in Detroit, Michigan.

920 
WWUS43 KDTX 212131
WSWDTX
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
431 PM EST FRI JAN 21 2011
...EXTREME COLD WIND CHILLS TONIGHT...
.COLD TEMPERATURES IN ADDITION TO WINDS INCREASING TONIGHT AHEAD OF
A LOW PRESSURE SYSTEM WILL ALLOW WIND CHILLS TO DROP BETWEEN -15
AND -20 ACROSS THE NORTHERN THUMB AND SAGINAW VALLEY TONIGHT.
MIZ047>049-053>055-062-063-220545-
/O.NEW.KDTX.WC.Y.0001.110122T0500Z-110122T1500Z/
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-LAPEER-ST. CLAIR-
INCLUDING THE CITIES OF...MIDLAND...BAY CITY...BAD AXE...
SAGINAW...CARO...SANDUSKY...LAPEER...PORT HURON
431 PM EST FRI JAN 21 2011
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
EST SATURDAY...
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM EST SATURDAY. 
IMPACTS...
 * COLD WIND CHILLS MAY LEAD TO FROST BITE AND HYPOTHERMIA IF
 PRECAUTIONS ARE NOT TAKEN. 
HAZARDOUS WEATHER...
 * WIND CHILLS ARE EXPECTED TO FALL BETWEEN -15 AND -20 DEGREES
 LATE TONIGHT THROUGH TOMORROW MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
 * A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG
WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT
IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT
TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT
AND GLOVES.
&&
$$
RK